Matthias beock



U IrnnS'r-Arns PATENT QFFIGE f v GEORGE W. COPELAND, OF MALDEN', ERASTUS- WOODWARD AND MATTHIAS BROOK, 0F BOSTON, MASSAOHUSETFS, ASSIGNORS TO SAID COPELAND.

|' M PRO-VEM EMT in .lAGKtNG- MAC H miss.

Specification forming part of Letters Patent No. 197,608 ,4lated' November 27, 1877 application filed I April. 24., 18737.

To all whom i't may concern:

Be itknownthatwe, GEoRGnW. COPELAND, of Malden, inthe county of Middlesex, and ERASTUS VVOODWARD and MArrnms BROOK,

both of Boston, in the county of Suflolk, all in the State of Massachusetts, have invented an Improvement in T'acking-Machines, of which the following is a specification: I

Our invention relates to a machine for driving tacks, with especial adaptation for use in connection with machines for lasting boots and shoes.

The invention consists in a means of automatically feeding the tacks to the delivery-tube in the proper posit-ion to be acted upon by the driver also, in a means for preventing the clogging of the delivery-tube by the tack-strip also, in a means for retaining the tack in place in the delivery-tube.

Referring to the drawings, Figure 1 is an elevation of a machine embodying our invention. Fig. 2 is a vertical section of the same. Fig. 3 is an enlarged view of the parts composing the feeding mechanism. Fig. 4. is a section through the line was of Fig. 3. Fig. 5 is a section through the line 3/ y of Fig. 3. A represents a metal frame or holder, adapt, ed to be readily grasped or held by the hand. Within the frame A is arranged a drivingspindle, B, provided with a retracting-spring, as shown in Fig. 1, and having at its lower end the tack-driver a. O is a lever, provided at its upper end with a projection, c, which enters a recess, 1), in the driving-spindle B, when the latter is forced downward, the said projection being forced into the recess by means of a spring, D, attached to the frame, as shown in Fig. 2. 1

The lever C has its fulcrum at E, and on its lower end is attached a bar or pawl-holder, F.

H is a pawl hung on .a pin, G, in the pawl-' On the inner" holder F, as shown in Fig. 3.

end of the pawl H is a pin or projection, 2, which is caused to come in contact with the body of the tack at the proper time to feed it to the driver. The pawl H is forced down upon the tack by means of a spring, I, Fig. 1.

Attached to the rear side of the cap-piece L is a fiat spring, K, the free end of which is bent at a right angle, as shown in Fig. 5, the bent end entering a. slot inthe cap-piece, and bearing against the strip which holds the tacks, so as to retain the said strip in place while the pawl H is retracted. 4 In the forward portion of the spring K are two recesses or openings, Fig. 3, between which is an incline, is, rising from rear to front. The pin 2 on the pawl H, when in the rear slot or recess, as shown in Figs. 3.and 5, is'in the position when the tack is fed forward and ready to be driven. As the spindle descends to drive the tack, the projection c on .the lever O enters the recess 12 in the spindle turn under the incline k, thereby raising the bent end of the spring K, and thus releasing its hold on the tack-strip B. At the same time the pawl H feeds the succeeding tack forward, and when it has arrived at the point where the feed is completed, the pin 2 on pawl H re-enters the rear opening from beneath, thus releasing the spring K, and causing it to drop at once upon the tack-strip B, where it remains until raised againto feed the next tack. 1

In order to insure the straight position of v I the tacks in a line with the driver, I have provided a means of closing the feedway at its point of connection with the driveway, as follows: In Fig. 5, 0 represents the feedway for the passage of the tacks S. In the rear of the throat-piece is a thin metal plate, M, hinged at m, and held in a closed position by a spring,

N. The inner front edge of the plate M is provided with an inclined projection,.that serves to close the feedway at its junction with the.

driveway, and thus preventing any displacement of the tack after it has enteredthe driveway. As the tack is fed forward, the plateM is forced back by the same sufficiently to allow the tack to enter the driveway, when the plate M is again forced back into place by the and clogging the driveway, there are provided two flat springs, t it, between which the body of the tack passes, and which are attached at one end to the bottom of the feedway, nearest its mouth, or where the tack-strip enters, while the other ends, which are free,'extend across the driveway. The free ends of the springs t t are somewhat elevated, and support the tack- .strip as it passes along. As the tacks come to the driveway, the driver a forces them through the strip, pressing the springs down upon the bed of the feedway. Upon the upward movement of the driver, the springsimmediately rise and elevate the paper strip, so that the burr on the under side will passfreely through without interruption or clogging the driveway.

The end of the feed-tube which comes in contact with the upper is serrated or roughened,

asshown at u, in order to prevent. it from slipping when held in an inclined. position, and also to serve to draw forward the upper to its place as the tack is driven.

What we claim as our invention is- 1. In a tacking-machine, the combination, with feeding and drivingmechanism, of springs t 1., adapted to hold a tack-strip, through which nails are driven singly as presented to the driver, all substantially as shown and described.

2. .The pawl H and holder'K, provided with the incline k between two openings in the holder, whereby the tack-strip is held in place and fed at each upward movement of the driver, substantially as specified.

3. The hinged plate M, constructedfas described, in combination with the guideway O,

for the purpose'of maintaining the tack in proper position in the driveway,substantiallya as described.

, In testimony whereof we have signedouf' names t0.this specification 1n the presence of two subscribing witnesses. i GEO. W. COPELAND,

'ERASTUS WOODWARD.

MATTHIAS BROGK.

Witnesses J os. H. ADAMS, Josnrrr OKEEFE. 

